"How can anyone trust a company that has so many names and websites and tries to hide their identity."
Simple answer - You can't!

I think you should look at why there are companies that behave in this way before you reach your conclusion. The recruiters know only too well that they've acquired a bad name as a result of the disgraceful and disgusting behavior of a few of their number. At the same time, they are eager to attract new clients for placement with Chinese schools for introduction fees. So, they are forced to engage in subterfuge to increase their client base. Understandable, and not necessarily a bad thing in the dog-eat-dog world of EFL recruiters in China.
But some EFL recruiters are warm-hearted. Why, there is even an EFL recruiter of some notoriety who has decided to work for 'love' introducing those who wish 'to make Chinese girl(boy) friends'. I think that is indeed a noble sentiment. Maybe he can assist you to find the perfect Chinese lady in your eyes! See below:

I am also working for Love-Sea Friends'Making Network, It is a free Date site.
To make Chinese girl(boy) friends here.
The website: http://www.aiqinghai.com.cn. Register here: http://www.aiqinghai.com.cn/multina.

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http://www.aiqinghai.com.cn